The CT-WN4320Z is a legacy device, meaning it has excellent support on older systems but may require manual installation on newer ones.
Most modern Linux distributions include the necessary firmware, but older or specialized versions may require manual installation of the zd1211 firmware.
Select the folder where you extracted the drivers earlier. Finish: Click "Next" and let Windows install the driver. 4. Troubleshooting: CT-WN4320Z Not Working
This is the method to get the exact driver without guessing:
Unplug and re-insert the USB dongle. It should be recognized immediately as a wireless interface. Raspberry Pi Forums 4. Usage Tips